Combined tire-valve and pressure-governor.



D. C. MGMILLION. COMBINED TIRE VALVE AND PRESSURE GOVERNOR. APPLICATION FILED JULY B, 1912. 1,053,623, Patented 119111111913.

(sTATEs PATENT, oFFioE.

DEINNY c. MdMILLIoN, or Los'ANGELEs, caLIroaNIA.

i Tire-Valve andPressure-Gbvernor; and I do herebydeclare the following to be a full, clear, and exactfdescription of .the invention, such as will'enable others skilled in the art to which it appertains to make and use the same.

This invention relates to c ombined tire valve and pressure governor, and it may be said to consist in theprovision lof the novel features and in the n ovel and improved construction, arrangement and combination of parts and members as will be apparent from the description and claim which follow hereinafter.

' One object 4of the invention is to provide a novel and improved device of the character specified which may readily be applied to' valve tubes already in use on vehicle tires. t

Further objects are to provide a novel and improved device of the character specified which is simple and compact in construction, economical tomanufacture, strong and durable, of comparative] small size,

" neat in appearance, easily adjustable, con- 4venientdn use, and effective in action.

. Other ob'ects and the advantages of the invention will be apparent to those skilled in the art'from a consideration of the following description of the preferred forms of construction embodying the invention, taken in connection with the accompanying drawings in which'- 'Figure 1 is a sectional view of the device adapted to be screwed on the upper end portion of a valve tube now in use on vehicle tires; Fig. 2 is a view, of the device applied to a valve tube; Fig. 3 is a fragmentary,v view of the graduated member and pointer,'and Fig. 4 is an elevation of the device provided 4with an Lextension whereby it may7 be ap plied to a vehicle tire instead of to a valve tube already on the ltire.v n

The hollow member 2 is provided with a vent 3 and with a valve seat 4 therein below the vent. A valve 5, preferably provided with a'packing ring 6 of suitable material, is adapted to tit into the valve seat 4r and is provided with a valve seat 7 for the valve 8 which has thereon 'the Astem 9 which passes Specification of Letters Patent. Application led July 8, 1912. Serial No. 708,391.

e' COMBINED TIRE-VALVE AND PnEssUnmGovEnNon.

Patented Feb. 18, 19173.

through the valve 5 and has thereon the collar 10. The valve 5 may have thereon the upwardly extending tubular part 11 and a spring 12 may be arranged in the part 11 and have its ends in engagement with t-he collar 10 and the valve 5. A hollow'membery 13 having graduations 15 thereon and having the upper part thereof ,of reduced size and threaded in the interior and on the exterior thereof, is' adjustably mounted'on the hollow member 2 preferably by being threaded on its interior and thereby adapted to be screwed up or down on the threaded exterior of the yhollow member 2. The valve 5 is pressed by a spring 16 which surrounds the spring 12 and has its ends in engagement with the valve 5 and the shoulder 14 in the part of the hollow member 13 may be h screwed the plug 18 through which the upper part of the stem 9` may pass, and a cap 19 may be screwed on the upper part of the hollow member 13. A nut 20 may be provided on 4the hollow member 2 to hold thel hollowmember 13 in adjusted position thereon. The hollow member 2 maybe provided with an interiorly threaded lower part 21 whereby the device may be screwed on the usualvalve tube indicated by 22, Fig. 2, or it may be provided with a suitable extension 23, see Fig. 4, whereby the device may be applied to a vehicle tire instead of to a valve tube'already on the tire. In the form of the device shown in Fig. 4, a cap indicated by 24 may be screwed on theextension 23.

In use, the hollow member 13 may be turned to move it on the hollow member 2 to bring opposite to the end of the pointer 17 that one of the graduations 15 which denotes t-he desired or safe ressure for air for the t-ire to which the devlce is applied. Air under pressure may then be supplied to the tire through the valve 8 by removing the cap 19 or 24 and attaching the usual air hose or the liketo the up er part ofthe hollow member 1.3, and, when the desired or safe pressure of the air in t-he tire is exceeded the valveA 5 is moved upwardly against the pressure of the spring 16 and aii` escapes from the vent 3 until the desiredl or safe pressure of the air'in the tire is reached, whereupon the' valve 5 is movedback to its seatf It willv belqseen that if, due

,to heat or other cause, thepressure of the modifications thereof willv readily occur to those skilled in the art, wherefore, the rightis reserved to all such changes andmodifcations as do' not depart from thexspirit and scope of the invention as dened in the appended claim.l

I claim: j

A combined tire valve and lpressure governor, comprising a hollow member having the lower part thereof formed to screw on a valve tube and provided with avent and a valve seat below sa-idvent, a second hollow. memberadjusta-bly mounted on the exterior of the first hollow member and having the threaded in its interior and on its exterior,` i said second hollow. member,prov1ded with a upper part thereof of reduced size and shoulder therein and lhaving graduations thereon, a plug adapted to screw in the upper part of the second hollow` member, a valve adapted to {it into said valve seat and provided with a valve .seat and having an upwardly extending t-ubular part thereon, a springhaving the ends thereof in) engagement with saidv'alve and said shoulder, a

` valve adapted to seat on the last `valve seat,

a stem on the last valve passing through the first valve and the plug, a collar on the stem,

a spring arranged within the`tubular part and'having the ends thereof in engagement w-ith the vfirst valve and ythe collar, a cap adapted to screw on the upper part of the second hollow member, and a pointer having the lower end portion thereof yaiiixed to the rst hollow member and having the upper end portion thereof disposed adjacent to the graouations on the second hollow member, substantially' as set forth.

In testimony whereof,' I have signed my' name to this specification in the presence of two` subscribing witnesses at Los Angeles, county of Los Angeles, State of California, this 28th, day of June A. D. `1912.l Y

DENNY Cl MCMILLION.l

Witnesses:`

ANNA B. DESSAU, ALEX. H. L`IDDERS. 

